.box .btn{
  background: rgb(155, 222, 198);
  color: rgb(226, 16, 85);
}
.box div{
  width: 100px;
  height: 100px;
  border: solid 1px #000;
  display: none;
}
.box{
  width: 300px;
  padding:100px;
}
.box div{
  width: 300px;
  background: rgb(213, 52, 52);
  color:rgb(25, 238, 238);
  box-shadow: 0px 0px 15px red;
  border-radius: 10px;
}
.box input{
  width: 100px;
  float: left;
  background: blue;
  color: yellow;
}
